RickCathey can probably chime in here, he's an electrical engineer, or an electrician or a sparky of some kind.
I realize you're trying to build the "most kick-a$$" HT you can, going way past what's necessary... but in this case, you're really just adding a bunch of different ground potentials. One or two circuits at 15amp should do you fine. Maybe one for the HT equipment, make it 20 amp if it makes you feel good, save another circuit for the lights (this is almost a must if you're using dimmers!) and quit worrying. If it makes you feel any better just TELL people every single outlet is on it's own circuit breaker and that you're using 2ga. solid uranium in-wall wiring.
Bren R.
